Rebecca Nilsen, DO - Medicare Anesthesiology in Worcester, MA

Rebecca Nilsen, DO is a medicare enrolled "Anesthesiology" physician in Worcester, Massachusetts. Her current practice location is 55 Lake Ave N, Anesthesiology Residency, Worcester, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (508) 856-3821.

Rebecca Nilsen is licensed to practice in Massachusetts (license number 235477) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1174720296.

Contact Information

Rebecca Nilsen, DO
55 Lake Ave N, Anesthesiology Residency,
Worcester, MA 01655-0002
(508) 856-3821
Not Available

Map and Direction




Physician's Profile

Full NameRebecca Nilsen
GenderFemale
SpecialityAnesthesiology
Location55 Lake Ave N, Worcester, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1174720296
  • Provider Enumeration Date: 07/02/2007
  • Last Update Date: 08/04/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 8123299096
  • Enrollment ID: I20110926000513

Medical Identifiers

Medical identifiers for Rebecca Nilsen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1174720296NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology 235477 (Massachusetts)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Rebecca Nilsen allows following entities to bill medicare on her behalf.
Entity NameShrewsbury Ambulatory Anesthesia Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356691885
PECOS PAC ID: 4385899962
Enrollment ID: O20130305000423
Entity NameToms River Ambulatory Anesthesia Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841540341
PECOS PAC ID: 5395980775
Enrollment ID: O20130408000357

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Rebecca Nilsen is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Rebecca Nilsen, DO
55 Lake Ave N, Anesthesiology Residency,
Worcester, MA 01655-0002

Ph: (508) 856-3821
Rebecca Nilsen, DO
55 Lake Ave N, Anesthesiology Residency,
Worcester, MA 01655-0002

Ph: (508) 856-3821

Reviews and Comments


Anesthesiology Doctors in Worcester, MA

Layla Fakhrzadeh, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 55 Lake Ave N, Anesthesiology, Worcester, MA 01655
Phone: 508-334-3271    Fax: 508-856-5911
Yoonyie Cho, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 55 Lake Ave N, Worcester, MA 01655
Phone: 508-334-1000    
Ashley E Gabrielsen, D.O.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 55 Lake Ave N, Worcester, MA 01655
Phone: 508-334-1000    
Dr. Sergio Zendejas, M.D.
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 281 Lincoln St, Medical Staff Svcs, Worcester, MA 01605
Phone: 508-334-8015    Fax: 508-334-8235
Antranig Kalaydjian, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 123 Summer St Ste 370, Worcester, MA 01608
Phone: 508-964-5580    Fax: 508-368-3143
James Savage Iv, M.D.
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 55 Lake Ave N, Worcester, MA 01655
Phone: 508-334-1000    
Sudershan Singla, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 281 Lincoln St, Department Of Anesthesiology, Worcester, MA 01605
Phone: 508-334-5897    Fax: 508-334-5179

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.